RT info:eu-repo/semantics/article T1 Approximate parametrization of plane algebraic curves by linear systems of curves. A1 Pérez Díaz, Sonia A1 Sendra Pons, Juan Rafael A1 Rueda Pérez, Sonia Luisa A1 Sendra Pons, Juana K1 Approximate K1 Parametrization K1 Plane algebraic curves K1 Linear systems of curves K1 Matemáticas K1 Mathematics AB It is well known that an irreducible algebraic curve is rational (i.e. parametric) if and only if its genus is zero. In this paper, given a tolerance ² > 0 and an ²-irreducible algebraic affine plane curve C of proper degree d, we introduce the notion of ²-rationality, and we provide an algorithm to parametrize approximately affine ²-rational plane curves by means of linear systems of (d−2)-degree curves. The algorithm outputs a rational parametrization of a rational curve C of degree d which has the same points at infinity as C. Moreover, although we do not provide a theoretical analysis, our empirical analysis shows that C and C are close in practice. PB Elsevier SN 0167-8396 YR 2010 FD 2010-02 LK http://hdl.handle.net/10017/49579 UL http://hdl.handle.net/10017/49579 LA eng NO Ministerio de Ciencia e Innovación DS MINDS@UW RD 29-abr-2024